Primer for sewer-seals.



- A. c. DALE. nPRIMER FOR SEWER SEALS. AFPLIOATION FILED JAN. 31, 19.11.

1,016,676, I Patented Feb. 6, 1912.

2 SHEETS-SHEET l,

fmnsw 75 15936.

COLUIIIIA PLANOOIAI'M (IO-,WASHINOTON. D C.

Patented Feb. 6, 1912.

2 SHEETS-SHEET 2.

COLUMBIA PLANOGRAI'H 60.. WASHINGTON, D. c.

UNITED STATES PATENT OFFICE.

ALBERT C. DALE, 0F LONG-BEACH, CALIFORNIA, ASSIGNOR OF ONE-HALF TO E. H.BARMORE, 0F LOS ANGELES, CALIFORNIA.

PRIMER FOR SEWER-SEALS.

Specification of Letters Patent.

Patented Feb. 6, 1912.

Application filed January 31, 1911. Serial No. 605,777.

To all whom 2t may concern:

Be it known that I, ALBERT C. DALE, a citizen of the United States,residing at Longbeach, in the county of Los Angeles and State ofCalifornia, have invented a new and useful Primer for Sewer-Seals, ofwhich the following is a specification.

This invention relates to means for priming seals or traps in thecommunication between bowls or other plumbing fixtures and the sewer. Insuch devices as generally constructed provision is made for a rapidoutflow or flushing of the fixture in the discharge or emptying into thesewer and this outflow is often so rapid that it carriesthe water out ofthe seal or trap to such an ex tent as to destroy the efficacy of theseal.

The main object of the present invention is to provide for replenishmentor priming of the seal under such conditions.

Another object of the invention is to enable the usual vent pipes forplumbing fixtures to be dispensed with. Such vent pipes are necessitatedlargely by reason of the breaking of the seal under the circumstancesabove stated and by providing means for priming or replenishing the sealunder such conditions, I am enabled to dispense with the vent pipe.

Other objects of the invention will appear hereinafter.

The accompanying drawings illustrate the invention, and referringthereto: Figure l is a vertical section of a bowl, showing the outletconnections to a sewer in elevation. Fig. 2 is a perspective of aperforated pipe section controlling the outflow from the bowl. Fig. 3 isa side elevation of a modified form of the invention attached to a sink,the latter being shown in section. Fig. 4 is a vertical section of thepriming chamber shown in Fig. 3.

l designates a bowl of a plumbing fixture, for example, a wash bowl, 2the outlet opening thereof, and 3 the removable plug for closing saidoutlet. Below said outlet, the bowl is provided with a chamber A and thepipe connection 5 to the trap 6 is connected to the lower end of thischamber 4. From the trap or seal 6, the pipe 7 leads to the sewer, saidpipe 7 terminating in a clowntake 7 in the usual manner, except that thevent pipe usually connected at the outlet of this pipe 7 is, or may be,omitted. The bowl is provided with a passage 9 establishingcommunication from the upper part of the chamber 4 to vents 9 at theupper part of the bowl, whereby air may pass out of or into the chamberat as water enters or leaves the same, so that the flow of the water isnot interfered with by suction or compression of air. overflow orwasteway for the bowl. The tube 8 fits at its upper end within theoutlet 2 of the bowl and at its lower end within the lower pipeconnection 5. For this purpose, the lower end of the tube 8 is beveled.

or tapered to fit within a corresponding flared opening within the pipeconnection 5 and the upper end of the tube 8 is expanded to fit withinthe outlet 2. Said tube 8 is provided near its upper end with atransverse diaphragm or partition 10 and with openings 11 in its sidewall above said partition and openings 12 in the side wall below saidpartition, said partition operating as obstructing means whereby all thewater passing through the outlet of the bowl is caused to pass throughthe openings 11 into the chamber 4 and from said chamber 4 through theopenings 12 into the tube 8. At its lower portion, said tube is providedwith outlet openings 13, the aggregate size and capacity of these outletopenings being small compared with the size and capacity of the openings11 and 12, so that the water may pass into the chamber A through theopenings 11 faster than it drains out through the openings 13.

The operation is as follows: Assuming the bowl 1 to have been filled andthe plug 8 to have been removed, opening the outlet 2, the water rushesout through the outlet 2 and openings 11 into the chamber 4; andaccumulates in said chamber until it reaches the level of the openings12 and the rest of the Water will then mainly run through the openings12 into the tube 8. The partition 10 breaks the force of the outflow tosome extent, but the force of the outflow through the openings 11 and12, tube 8 and trap 6 will be sufiicient to flush the trap or seal 6 andto entirely replace the body of water therein. It will be understoodthat during this operation, water will be running through the loweroutlets 13 in the tube 8 and while this outflow is negligible in vol umecompared with the sudden discharge through the openings 12, itcontinuesafter said discharge is completed, the body of This passage 9 alsoserves as the usual violent as to empty the seal into the sewer or tolower the level of the water in the seal below a safe level, sufficientwater will be furnished from the chamber 46 through the openings 18 toprime or replenish the seal and restore the water level therein to asafe height.

As shown in Figs. 3 and 4, the priming chamber, indicated at 4, may beformed as a separate fixture, attached to the bot-tom of a plumbingfixture, such as a sink 1, by a union 15 and connected to the trap orseal 6 by a pipe 5. The tube 8 is mounted in this chamber and isprovided with an obstructing partition 10 and with flushing openings 11and 12 and drainage openings 13, as above described. The operation ofthis form of the invention is the same as above explained.

What Iclaim is:

1. The combination of a plumbing fixture provided with an outlet, asewer connection including a seal, a chamber below the said outlet andabove the said seal, means for conducting into said chamber all of theoutflow through said outlet, said chamber having restrictedcommunicationat its lower portion, with said seal, so that the chamberwill be charged with water from the outlet of said fixture and saidwater will gradually drain into the seal to prime the same.

2. The combination of a plumbing fixture having an outlet, a sewerconnection including a seal, a tubeconnecting said sewer connection withthe outlet of the fixture, said tube having a transverse partition, anda chamber communicating with said tube above and below said partition toreceive a supply of water from the said outlet and to allow water to runofi from said chamber through said tube into the seal.

3. In combination with a plumbing fixture having an outlet, a chamberbelow said outlet, a sewer connection including a seal, a tube extendingwithin said chamber and communicating at its lower end with the sewerconnection above said seal, said tube having a transverse partition andbeing provided with openings above said partition and below saidpartition, said openings being of sufiicient capacity to allow a rapidoutflow from said outlet into said chamber and from said chamber intosaid tube, and said tube having openings establishing restrictedcommunication from the lower part of said chamber to said seal, wherebythe said chamber is charged with water from the outlet of the fittingand said water is allowed to gradually drain into the seal after therapid outflow through the upper openings ceases.

1. The combination of a plumbing fixture provided with an outlet, asewer connection including a seal, a chamber below said outlet and abovesaid seal, a tubular member connecting at its lower end with the sewerconnection and extending upwardly within said chamber, the upper end ofsaid tubular member being obstructed to prevent direct downflow of fluidthereinto from said outlet, and said chamber connecting with the outletto receive all the water therefrom and connecting with the upper portionof said tubular member to discharge water thereinto,-

and having restricted communication from its lower portion into saidtubular member to allow water to drain from the chamber into saidtubular member.

In testimony whereof, I have hereunto set my hand at Los Angeles,California, this 10th day of January, 1911.

ALBERT C. DALE.

In presence of ARTHUR P. KNIGHT, FRANK L. A. GRAHAM.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0..

